Using a transponder system to monitor incubation routines of Snowy Plovers

A Kosztolanyi, T Szekely

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We investigated the incubation behavior of a ground-nesting shorebird, the Snowy Plover (Charadrius a. alexandrinus) by developing a transponder system that recorded the identity of parents on their nest over 24 h. The system consisted of a small chip glued on the tail of the parent, an antenna that was buried under the nest, and a recording device that was buried nearby. The transponder system was both accurate and reliable, since only 0.2% of records were false. The records of the transponder system were augmented by visual observations, and these data were analyzed by randomization tests. We found strong daily incubation routines: females incubated during the day, whereas males incubated mostly at night. Overall, the females spent significantly more time incubating the nest (11.3 h (median)/day) than the males (9.4 h/day). We discuss several hypotheses for the observed daily incubation routines of the sexes, and propose experimental studies to test these hypotheses.
Original languageEnglish
Pages (from-to)199-205
Number of pages7
JournalJournal of Field Ornithology
Volume73 Spr
Issue number2
Publication statusPublished - 2002

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